bloomberg. i want to play a little clip of that ad. >> 20 heart broken families, i know how much it hurts. my 9-year-old daughter was murdered in the tucson shooting. i have one question for political leaders, when will you find the courage to stand up to the gun lobby? whose child has to die next? >> i think a lot of people will be shocked to know there has been 11 mass shootings since tucson and so many of us who were there and covered it well thought, one of their own was shot something will change. do you think newtown will be the impetus for change? >> most definitely. the president was met with vice president biden and they are working on a plan and i'm very very confident that something will be done. >> i know you've been following what mayor bloomberg was doing and he was on "morning joe" to talk about his efforts to ban assault weapons. >> nobody is trying to take away your gun or take away your right to go hunting or target shooting or have protection in your home. simply they are tryi